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My name is Ann [436]
3 years ago
5

Metallic behavior is generally associated with elements with partially filled p orbitals. elements with unpaired electrons. elem

ents with small atomic radii. elements with very negative electron affinities. elements with low ionization energies.
Chemistry
1 answer:
Mila [183]3 years ago
4 0

Answer:

Elements with low ionization energies.

Explanation:

The ionization energy of an atom reffers to the amount of energy that is required to remove an electron from the gaseous form of that atom or ion.

The greater the ionization energy, the more difficult it is to remove an electron. The ionization energybis one of the indicator that shows the reactivity of an element. Elements with a low ionization energy such as metals are usually reffered to as a reducing agents and form cations, this give metals the tendency to

give away their valence electrons when bonding, whereas non-metals tend to take electrons.

Metallic elements have different properties such as shiny, heat and electricity conductivity . They are malleable and ductile Some metals, such as sodium, are soft and can be cut with a knife. while some are very hard such as iron.

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pickupchik [31]
Number of copper atoms = moles of copper x Avogadro's number = 5.7x6.02x10^23 = 3.43x10^24 atoms.
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4 years ago
PLZ HELP WILL GIVE BRAINLIEST
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Answer:

The answer is A

Explanation:

I checked on a temperature converter calculator.

6 0
3 years ago
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1. Interpret the following equation using moles, molecules, and volumes (assume STP). Compare the mass of the reactants to the m
blsea [12.9K]
1. In this reaction, 2 moles of nitrogen gas reacts with 3 moles of oxygen gas to give 2 moles of N2O3 gas. 2 nitrogen molecules react with 3 oxygen molecules to give 2 N2O3 molecules.  Under STP, one mole of an ideal gas occupies a volume of 22.4 liters. So in this reaction, 44.8 liters of nitrogen gas reacts with 67.2 liters of oxygen gas to give 44.8 liters of N2O3 gas.  The total mass of the reactants (N2 and O2) is the same as the total mass of the product (N2O3). This is called mass balance of a chemical reaction.


2. According to the chemical reaction, 3 moles of chlorine gas produces 2 moles of iron(III) chloride.  So, to produce 1 moles of iron(III) chloride, 3/2 (1.5) moles of chlorine gas is required.  Therefore, to produce 14 moles of iron(III) chloride, 14 x 1.5 = 21 moles of chlorine is needed.
3 0
4 years ago
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¿Qué es un orbital s, un orbital p, un orbital d, un orbital f y cómo se representa cada uno?
irina1246 [14]

Answer:

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Explanation:

3 0
3 years ago
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The osmotic pressure of an aqueoussolution of urea at 300 K is
den301095 [7]

<u>Answer:</u> The freezing point of solution is -0.09°C

<u>Explanation:</u>

To calculate the concentration of solute, we use the equation for osmotic pressure, which is:

\pi=imRT

where,

\pi = osmotic pressure of the solution = 120 kPa

i = Van't hoff factor = 1 (for non-electrolytes)

m = concentration of solute in terms of molality = ?

R = Gas constant = 8.31\text{L kPa }mol^{-1}K^{-1}

T = temperature of the solution = 300 K

Putting values in above equation, we get:

120kPa=1\times m\times 8.31\text{ L kPa }mol^{-1}K^{-1}\times 300K\\\\m=0.05m

  • To calculate the depression in freezing point, we use the equation:

\Delta T=i\times K_f\times m

where,

i = Vant hoff factor = 1 (for non-electrolytes)

K_f = molal freezing point depression constant = 1.86°C/m

m = molality of solution = 0.05 m

Putting values in above equation, we get:

\Delta T=1\times 1.86^oC/m\times 0.05m\\\\\Delta T=0.09^oC

Depression in freezing point is defined as the difference in the freezing point of water and freezing point of solution.  

  • The equation used to calculate freezing point of solution is:

\Delta T=\text{freezing point of water}-\text{freezing point of solution}

where,

\Delta T = Depression in freezing point = 0.09 °C

Freezing point of water = 0°C

Freezing point of solution = ?

Putting values in above equation, we get:

0.09^oC=0^oC-\text{Freezing point of solution}\\\\\text{Freezing point of solution}=-0.09^oC

Hence, the freezing point of solution is -0.09°C

4 0
3 years ago
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